Mouse vs Track Pad

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New columns were made to indicate if each of Three Letters Counted Correctly, Color Match Average Correct, Symbol Match Average Correct, XO Average Time Correct, and XO Total Correct (Memory) are more than 1 standard deviation worse than the mean. 


99.82% of Low VM scorers also score low on Three Letters Average Counted correctly, while only 13.49% of the not low VM subjects and 14.51% of the total subjects.  This is a significant difference.  There is also a higher proportion of the low color match, symbol match, XO average correct, and XO total correct in the Low VM population than the Low VM population and the total population. 

I created an additional column to indicate Low Reaction Time Composite Scores: I define this as more than 0.90.


86.14% of the Low React scorers also score low on the Symbol Match Average Correct, while only 14.09% and 14.61% of the total population score low on the Symbol Match Average Correct score.  There is also a higher proportion of the low color match, three letters counted correctly, XO average correct, and XO total correct in the Low VM population than the Low VM population and the total population. 


The last row of the table shows that 19.63% of lowVM scorers score low on the parts that could be affected by the mouse vs track pad question and don't score low on the parts that are not affected by the mouse vs track pad question while only 2.93% of the not LowVM scorers score similarly.  Likewise, 33.83% of the low reaction time composite scores  score low on the parts that could be affected by the mouse vs track pad question and don't score low on the parts that are not affected by the mouse vs track pad question while only 2.70% of the not low Reaction time score similarly. This is evidence that the question of use of trackpad vs mouse may be relevant to the issue of low visual motor and reaction time composite scores. 

A chi-squared test was completed between a column indicating (Low Letter and Low Symbol Match) and not (Low Color Match and Low XO Average and Low XO Total) and lowVM, and the results (X-squared = 487.29, p-value < 2.2e-16) show that there is evidence of a relationship between low VM and possible track pad use. 
A chi-squared test was completed between a column indicating (Low Letter and Low Symbol Match) and not (Low Color Match and Low XO Average and Low XO Total) and lowReact, and the results (X-squared = 1890.1, p-value <2.2e-16) show that there is evidence of a relationship between low React and possible track pad use.

This is a table with Low Mouse (which is the name I used for the variable indicating (Low Letter and Low Symbol Match) and not (Low Color Match and Low XO Average and Low XO Total)) and LowVM.  It is sorted by LowMouse and shows the schools with Low Mouse proportions greater than 4%. The mean in the population is 3.15% and some schools have as high as 10%, although these schools do not have the highest LowVM percentages.  


This file contains the table with all of the organizations in the data base that have at least 100 subjects - the rest of the organizations have been moved to the "(other)" category. 
Low Mouse.numbers

This table shows the Low Mouse Percents by Sport

Looking at Rangeley Lake Region High School specifically, it appears that the soccer team has a very large percentage of Low Mouse scores. 

Looking at Freeport High School, it appears that the cheerleading, field hockey, football, and soccer teams have abnormally large low mouse percentages. 

Looking at WS Cohen School, football and soccer have abnormally high low mouse percentages. 

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